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Average

#972 of 2,463 schools in NJ

Top 39% in state

Millstone River School

Elementary School · West Windsor-Plainsboro Regional School District

75 GROVERS MILL ROAD, Plainsboro, NJ 08536

Enrollment

813

Student-Teacher

10.3:1

Score

6.9

Grades

3rd – 5th

Updated 2022-23

How this school compares

In Plainsboro

#2 of 5

public schools

New Jersey elementary schools

#587 of 1,496

In district

#4 of 10

West Windsor-Plainsboro Regional School District

Equity

8.5 / 10

Exceptional

About Millstone River School

Millstone River School serves 813 students in grades 3-5 in Plainsboro, New Jersey, earning recognition as a high-performing elementary school with a MySchoolScout rating of 7.5 out of 10. The school ranks #330 out of 2,475 schools statewide, placing it in the 87th percentile among New Jersey elementary schools. With 79 full-time equivalent teachers, Millstone River maintains a favorable student-teacher ratio of 10.3:1, allowing for more individualized attention in the classroom.

The school demonstrates solid academic achievement, with 64% of students performing at proficient or above levels in ELA/reading and 63% reaching proficiency in mathematics across the grade levels served. The school draws from an educated and affluent community where 78% of residents hold bachelor's degrees or higher, and the median household income reaches $122,254. This well-resourced neighborhood, with a median home value of $603,100 and a low poverty rate of 3.4%, reflects the high priority families place on education.

Millstone River School operates in a rural setting near town, providing students with a more spacious learning environment while remaining accessible to the broader Plainsboro community of over 20,000 residents in the 08536 ZIP code area.

What Parents Should Know

Located in a rural area, Millstone River School may involve longer commutes for some families. Rural schools often serve as community anchors and may have smaller class sizes, but parents should consider transportation logistics, after-school program availability, and access to specialized services.

Score Breakdown

Full Profile · 3/3 metrics
Student Progress6.3Above Average50%
Year-over-year improvement in student test scores.
View breakdown
Years of Data4
Annual Change-0.93 pts/yr
Data Period2019–2024
TrendStable
Academics8.2Excellent30%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency63%
Reading/ELA Proficiency64%
Math vs. State Avg+15.1 pts
Reading vs. State Avg+20.1 pts
Overall Proficiency64%
Expected (poverty-adj.)59%
vs. Expected+4.1 pts
Adjusted Percentile73th
College ReadinessNot Available

Data not available for this school

Resources & Environment6.5Above Average20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio10.3:1
Per-Pupil Spending$23,418

Millstone River School — Students at Millstone River School score 64% proficient, which is above what's typical for similar communities (expected: 59%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

8.9%

Students qualifying for federal meal assistance

Test Scores NJ NJSLA (2023-24)

Math Proficiency 65.3%
School
State
44.6%
ELA Proficiency 63.2%
School
State
49.3%

Based on 13 test records from NJ state assessments. About our data

Proficiency Trend

↓ Declining

Average proficiency (% at or above grade level) across Math & ELA over time.

2019
Math
70%
ELA
70%
2021*
Math
56%
ELA
59%
2022
Math
63%
ELA
64%
2024
Math
67.5%
ELA
62%

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Source: EdFacts (NCES) and state assessment data. Growth score: 6.3/10.

How Millstone River School Compares

See how Millstone River School performs across key quality dimensions compared to state benchmarks.

Overall Score
6.9/10
61th percentile in NJ
Academic
8.2/10
8.2/10
Growth
6.3/10
Above average
Environment
6.5/10
Above average

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
9%
Teaching Staff
10:1 student-teacher ratio
79 teachers

Location

75 GROVERS MILL ROAD, Plainsboro, NJ 08536

Nearby Alternatives

Families considering Millstone River School may also want to explore other elementary schools in the area. Riverside School (rated 9.7/10, 3.0 miles away, in nearby Princeton), which scores notably higher. Another option is Littlebrook School (rated 9.4/10, 3.5 miles away, in nearby Princeton), which scores notably higher. Additionally, YINGHUA INTERNATIONAL SCHOOL (rated 8.1/10, 3.8 miles away, in nearby Kingston), which scores notably higher. For more schools in Plainsboro, see our Plainsboro schools guide .

Nearby Schools

20 within 3.8 mi
School Distance Rating
Community Middle School Plainsboro 0.2 mi 6.7
West Windsor-Plainsboro High School North Plainsboro 0.3 mi 6.8
J.V.B. Wicoff Elementary School Plainsboro 0.6 mi 7.8
Town Center Elementary School at Plainsboro Plainsboro 0.9 mi 6.5
MONTGOMERY MONTESSORI SCHOOL Princeton 1.1 mi
KINDERCARE Princeton Junction 2.0 mi
West Windsor-Plainsboro High School South West Windsor 1.8 mi 7.3
EDEN SCHOOL Princeton 2.3 mi 7.6
FUSION ACADEMY PRINCETON Princeton 2.4 mi 7.2
Maurice Hawk Elementary School West Windsor 2.1 mi 6.3
FRENCH AMERICAN SCHOOL OF PRINCETON Princeton 2.7 mi 8.0
Dutch Neck Elementary School West Windsor 3.1 mi 5.6
Riverside School Princeton 3.0 mi 9.7
MOORISH SCIENCE UNIVERSITY Princeton 2.7 mi
Thomas R Grover Middle School West Windsor 3.6 mi 6.6
Village Elementary School West Windsor 3.7 mi 7.7
CHILDREN'S HOUSE OF THE WINDSORS West Windsor 3.8 mi 6.7
YINGHUA INTERNATIONAL SCHOOL Kingston 3.8 mi 8.1
Littlebrook School Princeton 3.5 mi 9.4
South Brunswick High School Monmouth Junction 3.8 mi 7.6

Neighborhood Census ACS (2019-2023)

Census data for ZIP 08536 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$128,426

Median Home Value

$655,100

Median Rent

$1,908/mo

Population

20,558

College Educated

79.2%

Homeownership

44.1%

Avg Commute

33.2 min

Poverty Rate

2.3%

Median Age

36.7

Community Profile

The community surrounding Millstone River School has a median household income of $128,426. It is a well-educated community where 79% of adults hold a bachelor's degree or higher. The median home value in the area is $655,100, with a median rent of $1,908/month. The local poverty rate of 2.3% is relatively low. The average commute for residents is 33 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
Chester M. Stephens Elementary School Budd Lake, NJ 6.9
Franklin Elementary School Westfield, NJ 6.9
Hopewell Crest Bridgeton, NJ 6.9
Jersey City Golden Door Charter School Jersey City, NJ 6.9
Lincoln Elementary School Edison, NJ 6.9
Ridge Street School Newark, NJ 6.9

Frequently Asked Questions

Common questions about Millstone River School

What grades does Millstone River School serve?

Millstone River School serves students in grades 3rd through 5th.

How many students attend Millstone River School?

Millstone River School has an enrollment of approximately 813 students.

What is the student-teacher ratio at Millstone River School?

The student-teacher ratio at Millstone River School is 10.3:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Millstone River School rank in NJ?

Millstone River School is ranked #972 out of 2,463 schools in NJ.

What is Millstone River School's MySchoolScout rating?

Millstone River School has a composite rating of 6.9 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.

What are the test scores at Millstone River School?

Based on the most recent state assessment data, Millstone River School has 65.3% math proficiency and 63.2% reading/ELA proficiency.

Is Millstone River School a charter school?

No, Millstone River School is not a charter school. It is a traditional public school operated by the local school district.

Is Millstone River School a Title I school?

No, Millstone River School is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Millstone River School?

8.9% of students at Millstone River School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

11 schools nearby View map →

Quick Facts NCES CCD (SY 2022-23)

Grades
3rd – 5th
Enrollment
813
Student-Teacher Ratio
10.3:1
Teachers (FTE)
79
Free/Reduced Lunch
8.9%
Type
regular
Setting
Fringe Rural
County
Middlesex County
Data Year
2023–2024

How We Rate Schools

Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.

Read our full methodology

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